When Firefox is configured to block storage of all cookies, it was still possible to store data in localstorage by using an iframe with a source of 'about:blank'. This could have led to malicious websites storing tracking data without permission. This vulnerability affects Firefox < 115.
{ "binaries": [ { "binary_version": "115.0+build2-0ubuntu0.20.04.3", "binary_name": "firefox" }, { "binary_version": "115.0+build2-0ubuntu0.20.04.3", "binary_name": "firefox-dev" }, { "binary_version": "115.0+build2-0ubuntu0.20.04.3", "binary_name": "firefox-geckodriver" }, { "binary_version": "115.0+build2-0ubuntu0.20.04.3", "binary_name": "firefox-mozsymbols" } ], "availability": "No subscription required" }